From 33c09c6d50e175c0ae19b6c0920415a1ad6a9e81 Mon Sep 17 00:00:00 2001
From: yamaoka <yamaoka>
Date: Mon, 20 Dec 1999 05:54:01 +0000
Subject: [PATCH] (base64-encode-region): Allow the optional second arg
 `no-line-break'. (base64-external-encode-region): Likewise.
 (base64-internal-encode-region): Likewise.

---
 ChangeLog   |    5 ++++-
 mel-b-el.el |   33 +++++++++++++++++++--------------
 2 files changed, 23 insertions(+), 15 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 82a664f..751bda5 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,7 +1,10 @@
 1999-12-20  Katsumi Yamaoka   <yamaoka@jpl.org>
 
-	* mel-b-el.el (base64-encode-string): Allow the optional second arg
+	* mel-b-el.el (base64-encode-region): Allow the optional second arg
 	`no-line-break'.
+	(base64-external-encode-region): Likewise.
+	(base64-internal-encode-region): Likewise.
+	(base64-encode-string): Likewise.
 
 1999-12-13  Kenichi OKADA <okada@opaopa.org>
 
diff --git a/mel-b-el.el b/mel-b-el.el
index f4a195b..2937238 100644
--- a/mel-b-el.el
+++ b/mel-b-el.el
@@ -124,7 +124,7 @@ external decoder is called."
     buf))
 
 (defun-maybe base64-encode-string (string &optional no-line-break)
-  "Encode STRING to base64, and return the result.
+  "Base64-encode STRING and return the result.
 Optional second argument NO-LINE-BREAK means do not break long lines
 into shorter lines."
   (let* ((len (length string))
@@ -146,16 +146,14 @@ into shorter lines."
 	     (pack-sequence (substring string b) 3)
 	     ""))))
 
-(defun base64-internal-encode-region (beg end)
+(defun base64-internal-encode-region (beg end &optional no-line-break)
   (save-excursion
     (save-restriction
       (narrow-to-region beg end)
       (insert
        (prog1
-	   (base64-encode-string
-	    (buffer-substring beg end))
-	 (delete-region beg end)))
-      (or (bolp) (insert ?\n)))))
+	   (base64-encode-string (buffer-substring beg end) no-line-break)
+	 (delete-region beg end))))))
 
 
 ;;; @ internal base64 decoder
@@ -233,7 +231,7 @@ into shorter lines."
 ;;; @ external encoder/decoder
 ;;;
 
-(defun base64-external-encode-region (beg end)
+(defun base64-external-encode-region (beg end &optional no-line-break)
   (save-excursion
     (save-restriction
       (narrow-to-region beg end)
@@ -246,7 +244,12 @@ into shorter lines."
       ;;   regularize line break code
       (goto-char (point-min))
       (while (re-search-forward "\r$" nil t)
-	(replace-match "")))))
+	(replace-match ""))
+      (if no-line-break
+	  (progn
+	    (goto-char (point-min))
+	    (while (search-forward "\n" nil t)
+	      (replace-match "")))))))
 
 (defun base64-external-decode-region (beg end)
   (save-excursion
@@ -270,9 +273,11 @@ into shorter lines."
 ;;; @ application interfaces
 ;;;
 
-(defun-maybe base64-encode-region (start end)
-  "Encode current region by base64.
-START and END are buffer positions.
+(defun-maybe base64-encode-region (start end &optional no-line-break)
+  "Base64-encode the region between START and END.
+Return the length of the encoded text.
+Optional third argument NO-LINE-BREAK means do not break long lines
+into shorter lines.
 This function calls internal base64 encoder if size of region is
 smaller than `base64-internal-encoding-limit', otherwise it calls
 external base64 encoder specified by `base64-external-encoder'.  In
@@ -281,8 +286,8 @@ metamail or XEmacs package)."
   (interactive "*r")
   (if (and base64-internal-encoding-limit
 	   (> (- end start) base64-internal-encoding-limit))
-      (base64-external-encode-region start end)
-    (base64-internal-encode-region start end)))
+      (base64-external-encode-region start end no-line-break)
+    (base64-internal-encode-region start end no-line-break)))
 
 (defun-maybe base64-decode-region (start end)
   "Decode current region by base64.
@@ -376,7 +381,7 @@ START and END are buffer positions."
  (mime-write-decoded-region start end filename (nil "base64"))
  'base64-write-decoded-region)
 
-       
+
 ;;; @ end
 ;;;
 
-- 
1.7.10.4